80627381 has 2 divisors, whose sum is σ = 80627382. Its totient is φ = 80627380.

The previous prime is 80627369. The next prime is 80627399. The reversal of 80627381 is 18372608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48080356 + 32547025 = 6934^2 + 5705^2 .

It is a cyclic number.

It is not a de Polignac number, because 80627381 - 2¹⁴ = 80610997 is a prime.

It is a super-2 number, since 2×80627381² = 13001549133838322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80627341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40313690 + 40313691.

It is an arithmetic number, because the mean of its divisors is an integer number (40313691).

Almost surely, 2^80627381 is an apocalyptic number.

It is an amenable number.

80627381 is a deficient number, since it is larger than the sum of its proper divisors (1).

80627381 is an equidigital number, since it uses as much as digits as its factorization.

80627381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 80627381 is about 8979.2750820988. The cubic root of 80627381 is about 432.0103824808.

Adding to 80627381 its reverse (18372608), we get a palindrome (98999989).

The spelling of 80627381 in words is "eighty million, six hundred twenty-seven thousand, three hundred eighty-one".